Design and Fluid Flow Analysis of Helix Heat Exchangers

Publish Year: 1386
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ICHEC05_432

تاریخ نمایه سازی: 7 بهمن 1386

Abstract:

In this article, it was studied how to achieve to a shell-and-tube heat exchanger with an optimum helical baffle of 42 degrees using CFD analysis. The study was followed by considering shell side flow pattern movement and thermal analysis of the exchanger. Finally, a comparison was made between a heat exchanger with segmental baffle and optimal geometry of 25% baffle cut and a helical exchanger. In addition, a modified equation for turbulent flow in shell side of helically baffled exchanger was developed. This study emphasized that the helically baffled exchangers can be removed and be minimized the main limitations of design for the common exchangers with segmental baffle. It was recognized that helix exchangers have a higher thermal performance and a lower fouling tendency.

Authors

Jafari Nasr

Petrochemical Research & Technology Co. (NPC-RT), POBox; ۱۴۳۸۵, Tehran, Iran

Rostami

Chemical Engineering Department Sahand University of Technology, Tabriz, Iran

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  • M.R.Jafari Nasr, A.Shafeghat; Helical baffles Heat Exchangers as a strong ...
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